Window-sash supporter



No. 30,337. PATENTED OCT. 9, 1333 J. MoMAHAN.

SASH SUPPORTER.

UNITED STATES PATENT OFFICE.

JAMES MOMAHAN, OF AMELIA, OHIO.

WINDOW-SASH SUPPORTER.

Specification of Letters Patent No. 30,387, dated October 9, 1860.

To all whom it may concern:

Be it known that I, J. MCMAHAN, of Amelia, county of Clermont, and State of Ohio, have invented certain new and useful Improvements in SaslrSupporters; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, forming a part of this specification, in which Figure 1, represents a perspective view, and Fig. 2: represents a transverse horizontal section of a window frame and sash to which my improvement is applied.

Like letters of reference indicate like parts in the two drawings.

My invention relates, to the employment of .thin strips of an elastic substance, such as india rubber placed in the grooves of window frames in which the top and bottom parts of the sash slide; and, the use of small rollers, let into the edges of the sash but projecting therefrom sufficiently to press against and indent themselves into the elastic lining strips.

The objectof my invention is to support the sash of windows in any position in which they may be placed, by a yielding compressing force which is easily overcome when the sash is required to be moved, thus dispensing with the use of weights and fastenings for that purpose; my invention also prevents the jar and rattling of window sash particularly in cars and omnibuses.

A, is the window frame which is of any approved familiar construction.

B, B, are the lower and upper sash.

C, is the window sill.

The sashes B, B, are fitted to the window frame A, in the ordinary manner except that the grooves in the side pieces of the frame in which the sash slide contains each a thin elastic strap or lining a.

Z), Z), are center strips of wood by which the two parts of the sash are separated.

c, c, are pilasters which retain the sash in the frame.

(Z, (Z, are small rollers which are inserted into the side pieces of the sash frame, one at or near each of the four corners thereof, a small center pin 6, passes through the frame and a central eye in the rollers forming an axis upon which the rollers revolve. The peripheries of these rollers project a small distance beyond the line of the frame,

and embed or indent themselves slightly into the elastic lining strips a, as shown. The rollers protect, the frame from coming in contact with the elastic lining strip; for if the frame were to be raised and lowered while pressing with any considerable force against the elastic lining strips, the latter would be rolled up and very shortly destroyed by friction.

In fitting the frames to receive the lining strips a, the grooves into which they are to be introduced may be enlarged inwardly like a dovetail as shown, the groove is then coated with glue or cement and the elastic strip which should be broad enough to fill the space snugly, is compressed and forced into the space where it is firmly held. A few small nails may be driven through the strip into the frame to render it still more secure.

In raising and lowering the sash the rollers, a, press against and revolve upon the surface of the elastic lining strips compress ing the elastic substance slightly as they are forced to roll over it and the resistance to the motion of the rollers which is thus produced, is suflicient to retain a sash of ordinary weight in any position in which it may be allowed to rest while at the same time the resistance is uniform and may be easily overcome when the sash is required to be moved from its place of rest.

The sash may be made to slide in the groove freely without binding at any point except when the rollers press against the elastic, since the sash is thereby compressed snfliciently to prevent it from being jarred or shaken by the wind.

The objects of my invention would 0bviously be accomplished by placing the rollers in the frame and securing the elastic strips to the sash, and in some cases this may be found a more convenient arrangement than that which has been described.

Having described my improved sash supporter, what I claim as my invention and desire to secure by Letters Patent is- The elastic lining strips (1, a, and the rollers cl, (1, when employed in a window frame and sash substantially as and for the purposes described.

JAS. MoMAHAN.

Witnesses:

WM. GLoUeH, JOHN Q. ADAMS. 

